6650013 has 8 divisors (see below), whose sum is σ = 9252288.
Its totient is φ = 4240544.
The previous prime is 6650011. The next prime is 6650041. The reversal of 6650013 is 3100566.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 6650013 - 21 = 6650011 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (6650011) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 48120 + ... + 48257.
It is an arithmetic number, because the mean of its divisors is an integer number (1156536).
Almost surely, 26650013 is an apocalyptic number.
It is an amenable number.
6650013 is a deficient number, since it is larger than the sum of its proper divisors (2602275).
6650013 is a wasteful number, since it uses less digits than its factorization.
6650013 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 96403.
The product of its (nonzero) digits is 540, while the sum is 21.
The square root of 6650013 is about 2578.7619122362.
The cubic root of 6650013 is about 188.0503580957.
Adding to 6650013 its reverse (3100566), we get a palindrome (9750579).
It can be divided in two parts, 665001 and 3, that multiplied together give a triangular number (1995003 = T1997).
The spelling of 6650013 in words is "six million, six hundred fifty thousand, thirteen".